Question

1. Write the four postulates of Dalton's atomic theory.
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Answer 1

Answer:

It involves the following postulates: (1) Elements consist of indivisible small particles (atoms). ... (3) Atoms can neither be created nor destroyed. (4) 'Compound elements' (i.e. compounds) are formed when atoms of different elements join in simple ratios to form 'compound atoms'

Answer 2

Daltons atomic theory

Explanation:

• Dalton's atomic theory was a scientific theory on the nature of matter put forward by him.
• All matter is made up of tiny indivisible particles called atoms.
• All atoms of a specific element are identical in mass, size, and other properties. However, atoms of different elements exhibit different properties and vary in mass and size.
• Atoms can neither be created nor destroyed.
• Furthermore, atoms cannot be divided into smaller particles.
• Atoms of different elements can combine with each other in fixed whole-number ratios in order to form compounds.
• Atoms can be rearranged combined, or separated in chemical reactions.